refactor: move some random methods to helpers

[Shinigami92]

After we discussed stuff in #874 (comment) I move these into helpers

[codecov]

Codecov Report

Merging #892 (ce6df4f) into main (af5606a) will decrease coverage by 0.00%.
The diff coverage is 97.37%.

❗ Current head ce6df4f differs from pull request most recent head 2e2bf13. Consider uploading reports for the commit 2e2bf13 to get more accurate results

@@            Coverage Diff             @@
##             main     #892      +/-   ##
==========================================
- Coverage   99.41%   99.41%   -0.01%     
==========================================
  Files        1959     1959              
  Lines      210917   210980      +63     
  Branches      907      908       +1     
==========================================
+ Hits       209687   209749      +62     
- Misses       1172     1173       +1     
  Partials       58       58              

Impacted Files	Coverage Δ
src/image_providers/lorempixel.ts	92.01% <0.00%> (ø)
src/finance.ts	99.31% <93.75%> (ø)
src/helpers.ts	98.88% <94.66%> (-0.44%)	⬇️
src/address.ts	99.79% <100.00%> (+<0.01%)	⬆️
src/animal.ts	100.00% <100.00%> (ø)
src/commerce.ts	100.00% <100.00%> (ø)
src/company.ts	100.00% <100.00%> (ø)
src/database.ts	100.00% <100.00%> (ø)
src/datatype.ts	100.00% <100.00%> (ø)
src/date.ts	100.00% <100.00%> (ø)
... and 14 more